Is there any reason you wouldn't want to use an on road engine on a off road buggy or truggy...? All I am concerned about is top speed runs, no turns, no competition events.
Thanks in advance for any input.

Is there any reason you wouldn't want to use an on road engine on a off road buggy or truggy...? All I am concerned about is top speed runs, no turns, no competition events.
Thanks in advance for any input.

you could.. the onroad engines dont have the bottom end torque as the offroad engines do.. try it and see what happens..

depends on the weight of the vehicle being pushed...if its very light then a .21 can wind out better...but if its a offroad machine like a Truggy a geared 28 will kill a .21..... 21's can rev higher, but only if they are pushing a light load, under a heavier load a 28 will push much better.....

I had couple friends try it... Engines got a little hard to tune and temperatures were all over the place. The on-road engines had no bottom end and when they started hauling they were uncontrollable, but fast indeed jeje